#!/usr/bin/python

# hashmap, array, set

# python: hashmap -> dict -> {}
# python: array -> list -> []
# python: set -> set -> set()

# dict

# color = {"red": 0.2, "green": 0.4, "blue":0.4}
# print color['red']
# print color['green']

# list
# color_list = ['red', 'blue', 'green', 'yellow']
# print color_list[2]

# set
a_set = set()
a_set.add('111')
a_set.add('222')
a_set.add('333')
a_set.add('111')

print a_set



